With Perl 5.8, you can also use PerlIO::gzip and read/write
gzip data though an IO layer -- e.g. here's a script that
reads a gzipped file, numbers the lines, and writes the
result to a new gzipped file:
use PerlIO::gzip;
open IN, "<:gzip", "somefile.gz" or die "$!\n";
open OUT, ">:gzip", "numbered.gz" or die "$!\n";
while (<IN>) {
print OUT join " ", ++$i, $_;
}
(God, I love it!)
UPDATE: (2010-10-18) It seems that PerlIO::gzip should be viewed as superseded by PerlIO::via:gzip. (see PerlIO::gzip or PerlIO::via::gzip).
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|